Treatment of chlorids of the alkali metals for the obtainment of useful products therefrom.



Z whom it may concern:

knmvn that I, JAMES ALFRED abject of the King of Great 1511mm, at 99Babington road, Strezthzim,

. flngiand, have invented a new and useful Treatment of Chlorids of theAlkali.

for the Qbtainment of Useful Prodwhich the following is lvie'iais from,01

reduce al'imiis v and nitrogen, ieb- )1 01% Email me w.

' H3108 01 a c res at niimwmemi i QLOGHCKS as herel w l'iiifl carriedant in t Li f the Mimi] mafia e. in a Yesi of Iii-3km 01' CDC-Hit orpnncipaiiy 0r" cobait at a high temperature with we of meiybedeiermetals 1 as n stain of the Sex" the fuliy ogiciized c011 i ch mm usiifesilks with he "mediate A ..:i',&15 being Specification 9:" LettersPatent.

OR TH? OBTAINMENT 0F USEFUL Application filed November 22, 191-3.Sari-8.11%. 802 51?.

aikalimetal. Tiiis first stage of the process may be carried. out atten; ei'atui'es which an be varied mm a red heat up t about 10%)Centigrade. In the secon f stage of he process the said moiybdute,0itungsta 'ze', then-reducvcL at m high temps ature (my (mt from 1200'to 1500 centijrgxde) by means of carbon, so that alkali metal is driven0i? with mroon muzmxid, and these iso can be coiiected 0iutilized, inanjfideliked may. Metallic moiybdcnmn, or tungsten, remains in theVQSSBI and this can then be again utilized for treatment of a freshcharge the chiorid 0f the alkali metal with vapor of Water.

According to modificatiun u? the i' employ msiyivdiztm in ca 21 i imrium.A sten, retreattempera 2 J l m waaei 1' "ogen and hyiiroch Quit aregiven 1-: meiybdate, or iiigsmte, of barium is i-egelicmteci far use intrenzing 3 ,1 QUHIHLNLJQS 0t tne chloral of alkali i i'etm-iin which thereact-ion be. hzik'ld in any conveneizzunnie by a fur- L w Hili weobtained 3.2mm the. a! 1 marimn gas -01 011.

The said vessel be provided Wiilil a tube extending tu new. the lowerend for the iuix'nission 0f the Water vapor and with a funnel and tubefor the PiiIDiSSlOH of the fused chiorici of the metal to 19211 theimw'el' part of the YESSH. and kni es are in w i A L mo plulufiki 401 meam kit 0 -115 ii}, :0- gen L;1 hydrochloric acid and the nnxtura ofalkali metal mpor and Carbon znonoxld. Thsss tubes Where sub ecim to thefurnacs h zit 5-, m id be zimcie at n die 01' cobalt.

makabie open *5 carbon and tion of cyanids bypassing the said gases,

the cyanids.

not limited thereto as any other suitable or convenient apparatus may beemployed.

Aslexamplcs of the utilization of the gaseous products, I mention theabsorption of the hydrochloric acid by .Water to produce ordinaryliquidhydrochloric acid, and the collection of the hydrogen in a gas holderand the passing of the mixtureof the vapor of the alkali metal andcarbon monoxid into a condenser to condense' the alkali metal, or theburning of the gaseous mixture with the necessary access of air to formcarbonate of the alkali metal, which may be allowed to deposit in aflue, or be otherwise collected.

If desired, the gases containing the vapor of alkali metal can be usedfor the productogether with nitrogen into an apparatus charged withcarbon and heated to a high temperature and suitable for the syntheticretort, already referred to' for producing In this case a sufficientlylarge charge of carbon is passed into the said retort to form the cyanidin the, presence of v nitrogen, the requisite amount of nitrogen beingpassed into: the said retort either through the pipe which is otherwiseused for passing the water vapor into the retort, or if preferred asecond pipe may be provided for the nitrogen.

Although tungsten is referred to throughout the claims, it is to beunderstood that molybdenumniay be substituted therefor in place oftungsten.

What I claim is 1. The process of treatin alkali-metal chloride, whichconsists in su jecting alkali metal chlorid at a high temperature to theaction of aqueous vapor in the presence of an intermediate metal of thechromium series, subsequently reacting on the resulting product at ahigh temperature with carbon .to obtain the intermediate metal andreusing the intermediate metal so obtained for the treatment of a freshcharge of alkalimetal chlorid.

2. The process of treating alkali -metal Or I may use the" carbon toobtain the tungsten and re-usi'ng the tungsten so: obtained forthe'treatment of a fresh charge of alkali-metal chlorid.

3. The; process of: treating alkali-metal ehlorids, which consists insubjecting alkalimetal chlorid at a high temperature to the action ofaqueous vapor in the presenceof timgste'n'in a finely divided condition,subsequently reacting on the residue at a'high I temperature withcarbon'to obtain thejtuiigsten and re-using the tungsten 'so obtainedfor the treatment of a fresh charge of alkalimetal chlorid.

4. The herein described cyclic process of treating alkali-metalchlorids, which consists in first subjecting an alkali-metal chlorid ata high temperature to the action of aqueous vapor in the presence oftungsten, and-subsequently reacting on the tungsten of the alkali-metalso obtained with carbon to produce metallic tungsten and alkali-metal,the said tungsten being then re-used for treating a fresh charge ofalkali metal chlorid". 5. The treatment of alkali-metal chlorid.

in a cyclic process of two stages, the first stage consisting insubjecting alkali-metal chlorid at a high temperature to the action I ofaqueous vapor in the presence of'tungsten in a finely divided conditionuntil substantially all the hydrogen and hydro-- chloric acid arerevolved, and the second stage consisting in reacting on the residue ata high temperature with carbon to obtain the tungsten, the tungsten soobtained being thenre-used for the treatment of a fresh charge ofalkali-metal chlorid.

In testimony whereof I have signed my name to this specification inthepresence'of two subscribing ,witnesses. I

U JAMESALFRED KENDALL.

Witnesses: 1

.* GILBERT FLETCHER Tyson, GARLES HENRY BAKER.

